Cooking apparatus.



F. V. DETWILER. COOKING APPARATUS.

APPLIOATION FILED NOV. 4, 1910.

1,0899 1 1. Patented Mar. 10, 191 1 3 SHEBTE-SHEBT 1.

\ 0 o o o o 0 0 o o 0 0 0 o 0 0 o o o o a JEFF 5X6; "6 6 0 j 3 I y M WI.

' F. V. DETWILER.

COOKING APPARATUS.

APPLIOATION FILED NOV. 4. 1910.

1,089,9 11 Patented Mar. 10, 191i 8 SHEETS-SHEET 2.

FOREST V. DETWILER, OF CHICAGO, ILLINOIS.

COOKING APPARATUS.

Specification of iletters Patent.

Patented Mar. 10,1914.

Application filed November 4, 1910. Serial No. 590,652.

ful Improvements in Cooking Apparatus, of

p which the following is a specification.

This invention relates to improvements in cooking apparatus particularlyconstructed for the employment of gaseous fuel in connection with aburner and one of the objects of the invention is to provide an improvedapparatus of this character in which is employed an'oven and a pluralityof lines leading from the bu rncr to the top stove holes, so thatcooking; may be done at one or more of the stove holes in the cooker andalso in the oven.

A further object to provide improved means for controlling tlic productsof comr bastion or heated air whereby it may be discharged to the stoveholes in the cooker and thence to the oven thereby causing the heatedair to circulate across the stove holes and about the oven.

A. further object is to provide an improved water heating attachment soarranged that the water therein willbe heated without the llame cominginto direct contact with the attachment.

A further object is to provide an im- [)YOYC-tl water supply tankarranged in, the path of circulation of the heat and in a position wherethe llamc will not come into contact therewith.

To the attainment of these ends and the accomplishment ofother new anduseful objects, as will appear, the invention consists in the:liiati'ires of novelty in the construc tion, con'ibination andarrangement of the several parts hcreina'l'ter more fully described andclaimed and shown in the ac' companying drawings, in which:

liignre 1 is a perspective view of an improved device of this characterconstructed inaccordance with the n'inci iles of this invention. Fig. isa horizontal sectional view taken on line Q-2 of Fig. 3. Fig. ll is a.longitudinal ectional view on line il- -il ol Fig. *l:. l i lis ahorizontal sectional view on line -l-----l of Fig. I Fig. 5 is a detailperspective view of the cooker with the outer casino removed. Fig. (3 isa sectional view on lire (3 ol' Fig. 3).

llel errin more particularly to the druwiugs and in the presentcxeniplitication of .air may enter the line.

the invention, the outer casing comprises a bottom 10 and surroundingupright walls 11, all of which may be constructed in any desired orsuitable manner and of any suit able material but are preferablyconstrncttid of sheet material comprising spaced ine|nbcrs between whichis arranged suitable heat non-conducting material. The casing may be ofany desired size and configuration but is preferably rectangularin shapeand is nuunted upon suitable supporting he: 12.

Arranged within the caning, is a heated air tube or flue 123 which is ota size somewhat less than the width of the casing and is preferablyarranged in proximity toone cud oi the casing. This tubular member isonstructed of any suitable material and is of any desired configuration.-'lhc lower portion of the line 13 is enlarged as at l t. to forminclined walls 15 having apertures or openings 16 adapted to be clo.-,oil by dampers l7 and these dampers 17 are provided with operating handles18 which extend through the l'ront of the casing. as shown more clearlyin Figs. 1 and The lower extrenn ity-ol the enlarged portion l-l of theline is shaped to form upright walls It) and the bottom it) of thecasing is provided with an aperture thercthrough of a size substantiallyequal to the size of the portion l-li, with which the latter registers.This llue forms a heated air pawage and is sUCUIOd in position in anysuitable manner. preferably by means ol' the lower cxtremitv thercoiprojecting into the aperture in the bottom 10 of the casing". theopcnirg;- in the bottom it) and is provided with an aperture 21 throughwhich out ide plurality ol air circulation tubes 22 are provided adjaent the bottom of the lluc and these tube; 2:. have eommunicalioh withthe outsid air through-the bottom ll) ot the casing and also with theline through the wall thereof, whereby sullicient air may be supplied tothe burner :2 which is located in the enltll d portion l--l ol the line.The smaller portion of the line i-l i ol' any desired height, bin ispreferably s-zonuwvhat lem than the height of the interior ol thecasing.

plurality ol branch tines "ll, 25.. 20, have lllltillliittlii ll at oneend with the extrcmity vi the line 1 and each of the lilies El. 23, 531'thus formed, are so arran; etil as to disebai gea portion of the heatedair from the flue I 1 respectively to the stove holes :27,

A closure 20 is provided for fill .836 flues will be directed 1 spectivestove holes.

29 in the top 30 of the casing,:so that the hot air and gases will passunder the stove holes so that cooking maybe done at one or more of thestove holes. The top 3.0 is'prefer'ably constructed in thesame manneras'the sides and bottom of the casing and a reinforce 31, similar inconstruction to the-top 30 is pro- I vided for the top. The flue ispreferably any suitable manner, preferably by means of v a wallonpartition 86 extending from the top of theflue 18' to the top of thecasing.- The flue 26 is formed by the partition 32 and the topWallof-the oven which oven is:

designated generally. by the reference numeral 38. The wall. 37 issupported at one end, preferably by the flue l3 and inclines upwardlyfrom its point of support to one of the side walls of the casing and issecured to said wall by means of suitable fastening devices 39. Thesides of the branch flues 24, 25, 26,. thus formed, are closed bymeansof walls 40, 41 (see Fig. 5%, so 'that the prod ieated air enteringtoward the reacts of combustion or n A single piece of sheet material isbent to form the bottom of the oven 38 (seeFigs. 3 and 5) andanuprightwall 43, which lat ter is secured in position by means ofsuitable fastening devices 44 fastened through apertures or openings 45in the top 87 of the oven :1 ml whichapcrt'ures or openings 45 arespaced some distancefrom the adjacent wall of the casing. ln order tohold the wall 43v and the bottom 42 of the oven spaced from the adjacentwalls of the casing, flanges 46 are provided on the wall 43 and similarflanges 47- are provided on the bottom 42 and are adapted to engage theadjacent walls to form heated aircirculation passages. The wall ofthe'oven opposite the wall 43 is formed by an upright wall 48, whichlatter forms one of 'the walls of the flue 18. The

portions of the wall 48 extending beyond the line 13 are provided with aplurality ofapel tures or openings 49, as shown more clearly in Figs. 2and 5, for a purpose to be set forth. This wall 48 extends to the wallsof the casing and is provided with flanges 50 'which terminate adjacentthe bottom 42 of the oven. 1

The deflector 31 arranged between the I branch flues 24, 25 projectsbelow the extreniity 51 of the deflector 32, as at 52, so that the inletopenings to the flue 24 will be located below the inlet openings of theflue 25, and the inlet opening'of the flue 25 is located below the inletopening of the fines 26, so that the heated air discharged from the flue13 will be dividedand will be equally distributed into the branch fines24, 25, 26.

In order that'theflues 24,, 25', 26 may be controlled, dampers 53, 54,55are respectively provided for these flues'and handles dampers and'whichhandles project through the-front of the casing whereby thedampers may be manipulated-from the outside of the casing. These dampersareso arranged with respect to each other andto the inlet openings ofthe flues, that when the dampers 53,

54 are adjusted to close the entrance open ings of the fines 24, 25,they will form ani'n-. clined deflector as shown in dotted lines in Fig.3 for di'recting all of the heated air into I The burner 23 receives itssupply of fuel througha suitable supply pipe 59. which the flue 26whenthe damper 55 is open.

latteris connected wit any suitablesource of supply, and a pilot burner60 is provided for lighting the burner;

The wall 36 and the adjacent wall of the 56, 57,58 are provided forumrespective tubular member '13 are spaced for some'disj tance from theadj acent wall 11 0f the casing to form a space 61 fora purpose to behereinafter set forth; and are. provided with openings 62 63 for apurpose which will also be set forth, and these openings are.respectively controlled by dampers 64, 65, handles I 66, 67 of whichproject through the front of the casing, as shown more clearly in Fig.1.

The damper 68 (see-Fig. is provided adjacent theoutlet of thefiue 26 andthis damper serves as a means for preventing the heated air fromentering the passage 69 formed between the wall 43 of the oven 38 andthe adjacent wall of the casing, and this damper 68 is controlled bymeans of 'a handle 6 9 located on the outside of the casing.

Suitable shelf supports 70 for the shelf 71 are provided in the oven 88and supporting members-7 2 may be provided for supportmg the bottom 42of the oven. I

Air inlet openings-73 are provided in the walls .11 of the casing'for'admitt'ing outside air into the casing and for ventilating theoven, and dampers or closures 74 are provided for these openings.

'VVith this improved construction itwill be apparent that the productsof combustion from a single burner will be discharged to one or more ofthe stove-holes 27,. 28, 29 to circulate thereacross, by means of theheated air flues 24, 25, 26 sothat cooking may be done on one or more ofthe stove holes. These branch flues communicate with the tube or flue 13into which the products of combustion are dischar ed. flues 24 26 vbeing formed by the curved deflectors 31, 32-, 35. It will also beapparent that the heated air will be discharged under'the.

l. ,ee a ,o It. i

stove holes in. the cooker and thence to the oven 3t so that the hot airor gases will be compelled to circulate by passing through o iienings2-33, St in the dcllectors I5l. I32 and the 01enings -l.5-intl1e top 217of the oven into the heated air circulation.passage t3!) behind the wall{3 ot the oven when the damper t'vSis (niened. From this heated airpassage ht) the heated air or gases will be (lisclmrged into the passageor line 75 formed below the bottom 42 of the oven and through theopenings '76 in the bottom into the even where it will circulate andwillpass out of the oven through the openiiigs 77 in the wall l3, and will.continue to thus circulate until the damper (38 is closed, at which timethe airwill pass out of the openings 2T, 28, 2.). At the same timeheated air from the burner 23 will enter the oven 38 through theOpenings 16 in the heated air [lac when the damper 17 is opened. Theover. may be ventilated by adjusting the dampers T-lto permit'outsideair to enter the heated air passage (it). lhus,it will be seen that theopenings 00, rlin the curved deflectors 31, I32 permit the. heated airto circulate from one of the fines to another. and when it is desired touse .only the stove holes, the damper (SS is closed and the heated airis chargeddirectly to the stove holes.

'ljt it is desired to cause theheated air to circulate under the stoveholes, the damper ()8 may be opened and the damper (i l controlling theupper openings (33 in the wall til; is also opened. This, as will b*apparent, will cause the circulation at the heated air about the even aswell as across or under the stove holes.

ilit will also be apparent that cooking may be carried on at the stoveholes 27, 28, ill in the casing at the same time that articles arecooking in the oven. lhen it is desired, any one or more ol. the linesll, 25, fit) may beclosed to prevent the heated air from enteringtherein without a ll'ecting the cooking in the oven I38, inasmuch as theheated air will circulate through the openings ill). Ill.

A water heater designated generally by the rel crcucc numeral Th may beplaced within the casing. preferably adjacent the upper portion ot thetluc l l, and this water healer ma be connected at its extremities,which latter pass through the wall ol the casing. to any suitable sourceoil supply and to any discharge pipe. \vilh this construction it will beapparent that the water in the coil or heater 78 will be heated by theheated air in the casing and without the lame coming into contact withthe heater, lhereoy prolonging the life of the heater.

A water tank 79 is ar 'aziged Within the space at and is supported inany desired or suitable manner, preferably by means of brackets orsupports 80. This water tank may be ol' any suitable size andconfiguration and preferably extends through the top of the casing. A.closure 81, having a vent opening 82, is provided for the tank and adischarge pipe a extends through the wall of the casing and is providialwith a stop cock S t, by means ol which the water in the tank may bedrawn oil when desired. The heated air circulates against the tank fromthe flue by passing through the openings 1b in th adjacent 'all '15 ofthe heated air line and the openings (525 of the adjacent wall, of theflue l3 when the respective dampers 17, 5 are open. The heated air thusentering the space (31v will be discharged ihere'l'roin through theopenings (32 in the wall ill) and into the llue 121-, when the damper al is open, thus the circulation and distribution of the heated air canbe positively controlled, and when it is desired the dampers 17, (35,(ll may be closed, which will shut oh the circulation of the heated airin'the space (31. Any one or more of the dampers 533, 5+, may be closedto prevent the heated air from chtering the respective lines it, 25, 2nand the damper on may be opened or closed to permit: or prevent thecirculation ol the heated air or gases around the oven. l

The openings -l. in the wall to ol the oven will also permit the heatedair or gases to enter the space ii] in which the tank is located.

the Front of the casing is provided with a door opening having a closure85 by 'means Oil whicn access may be had to the oven and the line. andthe llue ll; is provided with an opening in the wall thereof which isclosed by a closure St by mains ol which access may be had to theinterior ol the line. The front wall of the casing is provided with anopening in proximity to the closure Sn and is provided with a closureHT. closure he is provided for another opening in the front wall ol thecasing and is arranged :uljacent the enlarged portion ll of the mainheated air llnc and through which opening access may be had t a gate orbroiler 8!) arranged in the enlarged portion .l.-l-.

'lhis improved construction is also adapted for use in burning naturalgas. but in order to adapt. it lor u e with such 'l'ucl. it is necessaryto prevent the disagreeable odors which result from the use of naturalgas being discharged into the room. as well as to :arry oil the odorslroin-the cooking food. In order to accomplish this result, these odorsare caused to circulate through a portion of the casing to a dischargeoutlet, the circulation being provided for the purpose of conserving orpreventing the esape of the heat units with the odors. For this purposethere is provided a discharge outlet 90 (see Fig. 6) which leads to anysuitable poiiit of discharge, such as a chimney or flue and a casing1s.formed adjacent this outlet '90- and comprises inclosing walls 91 anda series of partitions 92, 93, which latter are arranged within thecasing formed by the walls 91. The partitions 92, 93 are staggered withrelation to each other, that is to say, one of the partitions 92 extendsfrom the top of the cooker casing and terminates short of the bottomthereof to form a passage 94-, while the partition 93 extends from thebottom of the cooker casing and terminates short of the top thereof toform apassage 95, while the walls 91 also extend from the top of thecooker casing and terminate short of the bottom of the 'latter to forman inletpassage 96. This inlet passage 96 has communication with theinterior of the cooker casing, preferably with the space 61,

and the'partitions 92, 93 and thewalls 91 are spaced from each other toform a tortuous passage for the gases, the outlet 90 being locatedadjacent the end of the passage formed by the'partition 92 and theadjacent wall of the cooker, remote from the inlet 94: thereof.

In this improved construction it. will be openings33, 34: which latterare located in.

close proximity to the stove holes and form communication between therespective fiues at points remotefrom the inlet ends of the fines.l/Vhen the damper (*8 is open and 4 when-the damper 74 controlling theupper opening 78 through the wall' of the casing is open, directcommunication from the interior of thecasing to the external air Will beformed. This will. cause or induce a circulation of the heated airacross the stove holes, inasmuch as the draft caused by this openingwill draw the heated air through the openings 33, 34: in the partitions,past the damper 68, through the openings 5L5 and thence out of the upperopening 7 3.

When it is desired to employ the oven for baking purposes and in orderto induce a circulation of .theheated air "across the stove holes andalso about the oven, the dampers Tet controlling the lower openings 7 3in the walls of the casing, or the openings adjacent the base thereof,may be opened,

which will cause the heated air to also circulate throu'ghthe heatpassage 69;

lVhat is claimed .as new is v 1. A cooking apparatus coitprising aninclosing casing having stove holes in the top thereof, a flue withinthe casing adjacent one side thereof and having a plurality of branchesleading to the stove holes, a source of-supply of heat discharging intothe flue, an oven in the casing, one wall of the oven being adjacent theflue, a second flue extending about the oven and having communicationwith the first said flue, and means for, causing the heated air from thefirst said fine to pass under the stove holes and circulate about theoven, said branches having points of connection with the fine indifferent horizontal planes with relation to each other. W i 2. Acooking apparatus comprising an inclosing casing having stove holes inthe top thereof, a flue within the casing and having into an openbranch.

a plurality of branches leading to the stove holes, a source of supplyof heat for the flue, an ovenin the casing, a-flue extending about theoven and having communication with thefirst said flue, and dampersindividual to the said branchesfor controlling' the heated air therein,said dampers being disposedin different horizontal planes and adaptedwhen adjusted to close the respec tive branches to form deflectorsinclined to the horizontal for diverting the 3. A cooking apparatuscomprising an inclosing casing having stove holes in the top thereof,-aflue within the casing, a source of supply of heat for the flue, curveddeflectors extending into the top of the fine to form heated} airportions of branch'fiues extending from the first said flue to thestoveholes, some of said deflectors extending into the flue agreaterdistance than others, said deflectors being provided with openingstherethrough adjacent the top of the casing, an oven, a flue extendingabout the oven and communicating with the first said fine, and means forcausing the heated air from the branch fines to pass under the stoveholes and circulate about the oven. v 1

l. A'cooking apparatus comprising an in closing casing having stoveholes at the top thereof, a fine within the casing, a source of supplyof heat for the flue, curved deflectors extending into the top of theflue to form portions of branch fiues extending from the first said flueto the stove holes, some of said deflectors extending into the fine agreater distance than others, said deflectors being provided withopenings 'therethrough' ad-' qa cent the op Of the casing, an oven, aflue closing casing having stove holes in the top thereof, line withinthe casing, a source of supply of heat for the flue, curved deflectorsextending from the top of the casing to the top of the fine to forniportions of branch flues vidual to said ln'anehes for closing one or foreonununieation with the first recited fine and outendin; to therr-speetive stove holes, said braneh flues e .n111nu11ieatine with thefirst reeited fine at difl'erent points with respeet to the height of?the latter, an oven in the raising, a flue about the oven andcommunieatinn with the first said flue. and means for controlling theheated air to cause the latter to flow aeross the stove holes and to(lll'Ctfltfll about the oven.

(S. In a cooking apparatus, the combination of? an int-losing easinghaving, stove holes in the top thereof. an oven in the raw ing lravine aheated air circulation passage flierearoulnl. a fine in the 'asingr,branch fines extending lireetly from the said flue to the respeetivestove holes and a burner disehare'ine into the first reeited flue, aehof said branches also having eommunieation with each other. there beingmeans tor eauS- in o; the heated air to flow under the stove hole; andthrough the heat passae: about the (iftll.

in a cooking ai iparatus. the Mnnhination of" an ifltlltlfillhj casinohaving stove holes in the top thereoi'. an oven in the easing having; aheated air circulation pass: 'e llitlt'lll'ffliltfi. ll llflll fine inthe easing, braneh flue-s ei'dendiiug tll reetl r from the first said.-flue to the re.--peeti\'e'stove holes, a burner disrlnirnine' into thefirst recited flue, $01118 of. the said branehea also lniving eonrnnuiieation with the others, there being means: for ('tlilHlllQ' the le-ifed air to fl W under the stove holes and through the heat passage aout, the oven. and means indimore 0''? the lnjanehes to the e franee of.her ted air dn-crt ly from the first reeited flue.

S. In a cooking; apparatus, the eombination of an inelosingr easinghaying stove holes in. the top. an oren in the casing having a heatedair eircnlation passage therearound, a fine in the easing havingbraneh'es .ltadine to the respeefivestore holes, there being meansindueing' a, eireulafion of the heated air in the branches XHTI'UHS thestore holes and about the oven, meana Wherehy'one or more of the saidbranches may be rlosed to the entranee ol heated air directly from theflue. a sonrre of? supply of heat for the fine, and mean wherein heatedair may he disehargaal train the said flue direetlr into the can noindependent l v of? the hranenes.

9. in a eoolzinu ttlffftff'tlllf-S, the eonihitna tion of an hunoainecasing having stove holes in its top. an oven in the easing having aheated air circulation passage there around, a flue in the :asii'ighaving branches leading direetly to the respective stove holes, a sourceof supply of heat for the flag there being means indueing' a circulationof the heated air in the branches across the stove holes and about theoven, means whereby one l inducing a circulation of the heated air in ormore of said branches may be closed to the entrance of? heat directlyfrom the flue, Said flue having means \vherelrv heated air may bedischarged from the flue direetl into the casing; indepeinhmtly of thebranehes..and means for controlling the last said means at will.

10. In a cooliina apparatus. the eon bination of an inelosiins casing:having, stove holes in its top, an oven in the :asing having a heatedair passage therearomnl, a fine in the casing having brain-hes leadingdirectly to the respective stove holes, there being means inducing" aeireulation of the heated air in the branehes.aeross the stove holes andabout the oven, means whereby one or more of the said branches may beclosed to the entranre of hea directly from the hie, said fluehaving'means whereby heated air may be disehare'ed from the flue directly intothe casing independentlv of the branches. means for controlling" thelast. .-'=aid means. at will. and a burner tor supplyingheated air tothe flue.

11. In a cooking apparatus. the combin: tion of an inelosiug eaainehaving! stove holes in it top. an oren in the ea ing); lnra'inp; aheated air passage therearound, a. fine in the easing having branchesheading dirertly lo the respective store holes, there being: meansinducing a circulation of the heated air in the brain-hes across thestove holes and about, the oven. nieanri wh re y one or more of' the midhraneluw may he flf I-ftl to the enlranre ot' heated air diria-tly fromthe flue. said flue haviiw ilil.'ff;:-' \vherenv heated air may be dislrarn'ed lrom the flue directly into the cui ine ndependi utl v of? thehranehezmeans for eontrolliiu: the last: said uieans at will. a burneri|l 'l ((l within the casing for supplying heated air to the fine andmeans for admitting external air to the burner.

l'i. in a cooking a fparatus. the eon'ibination of an inclosine' easinefhaving; stove hol s in its top. an oven in the easing. having: a heatedair passage flierearoiuul. and a. fine in the easing having brancheslead ing dire fly to the respeetire stove hole* there heina means:induciiny a ir ulafion of the heat d air in the ran hes acros the stoveboil-: and about the oxen. a souree of aupplv of heat f r the flue.nn-aus \rherehv said bran hes may he elosed i the line. said flue havingmeans \vl-iereln: heated air nary he fllS(lltt!",I(ll from the fluedireetlv into the casing, tlure being means whereby the l=i'.lled airfrom the easing may enter the said bra riches.

13. in a cooking i'iiifparatns, the combination of an int-losing.casina' having stove holes in its top, an oven in the raising l ar inna heated air pas-sage therearomul. a flue in the easing ha vingbranchesleading; di rectly to the stove holes. there being means air from thecasing may enter the said branches, means individual to the last tworecited means for controlling the latter and a source of supply of heatfor the flue. 14. In acooking apparatus,'the combination of an inclosingcasing having stove holes in its top, an oven in the casing having aheated air passage therearound, a flue in the casing having branchesleading d1- rectly to the respective stove holes, there be ing means foradmitting external air into the casing for inducing a circulation of theheated air in the branches across the stove holes and about the oven.means whereby said branches may be closed to the flue, said flue havingmeans whereby heated air may be discharged from the flue directly intothe casing, there being means whereby the heat ed air from the casingmay enter the said branches, means individual to the last two recitedmeans for controlling the latter and a source of supply of heat for theflue.

15. In a cooking apparatus, the combination ofan inc-losing casing.having a stove hole in its top,- an oven in the casing having aheatedair passage thcrearound, a fine in the casing leading directly to thestove'hole,

a source of supply of heat for the flue, there 35 heated air from theflue across thestove hole and about the oven. means for controlling suchcirculation, and a'water heater inthe casing outside of and independentof the r flue, saidflue having means whereby the heated air may bedischarged directly from the flue into the casing and before reachingthe stove hole, to circulate against the water heater. V

16. In a cooking apparatus, the combination of an inclosing casinghaving a stove hole in its top, an oven in the casing having a heatedair passage therearound. a flue in the casing leading to the stove hole,a source of supply of heat for the flue, means inducing a circulation ofthe heated air across the stove hole andwabout the oven, means forcontrolling such circulation, .a water heater in the casing outside ofand independent of said flue, said ,flue having means whereby the heatmay be discharged directly from the flue into the casing and be forereaching the stove hole to circulate against the water heater, and meansfor controlling the last recited means at will.

17. A cooking apparatus, embodying an Q inclosing casing having stoveholes in the top thereof, a flue within the casing adjacent one sidethereof and having a plurality of branches leading to the stove holes,said being means inducing the circulation 'of the branches having pointsof communication with they flue in different horizontal planes aplurality of branches leading to the stove holes, said branches'havingpoints of com-,-

munication withthe flue in different horizontal planes With'relation toeach other, there being one or more openings through the wall of thebranches-adjacent the stove holes and forming communication between thebranches, there being also one or more openings other than thestoveholes in the wall of the casing and having communication with theoutside air and disposed adj acent the-opening in the wallof'the fluefor inducing a circulation of the heated air through the walls of theflues and across the stove holes, and a source of supply of heat forthe'flues.

19. A 'cooking apparatus,embodying aninclosing casing having stoveholesin the top thereof, a flue within the casing adjacent one side thereofand having a plurality of branches leading to the stove holes, said thanthe stove holes in the wall of the casing and having communication withthe outside air and disposed adjacent the opening in the wall of one ofthe fines for inducing circulation of the heated airthrough the walls ofthe fines and across the stove holes, means for controlling the lastrecited openings, and a source of supply of heat for the flue.

"20. .In a cooking apparatus, the combination of a casing having a stovehole in its top, an oven in the casing having a heated air passagetherearound, a flue in the oven leading .to thestove hole, aburner forsup plying heated air to the flue, there being means for causing theheated air in the flue to circulate under the stove holea'nd about theoven, a discharge outlet leading from holes in the top thereof, a fluein the cas ing, a plurality of branches individual to the stove holesand leading from the flue, the walls of said branches being providedwith passages forming communication between the branches adjacent thestove holes, a heater discharging into the flue, there being a heatpassage having communication With one of the branches for inducing acirculationof heated air across the stove holes, and means forcontrolling the last said passage.

22. In a cooking apparatus, the combination of an inclosing casinghaving stove holes in the top thereof, a flue in the casing, a pluralityof branches individual to the stove holes and leading from the flue, thewalls of said branches being provided with passages formingcommunication between the branches adjacent the stove holes, dam

pers individual to the branches for con-.

the branches adjacent the stove holes, a heater discharging into theflue, there being a heat passage having communication with i one of thebranches for inducing a circulation of heated air across the stoveholes, and means for controlling the last said passage, said brancheshaving communication with the flue in different horizontal planes.

24. In a cooking apparatus, the combination of an inclosing casinghaving stove holes in the top thereof, a flue in the casing, a pluralityof branches individual to the stove holes and leading from the flue, thewalls of said branches being provided with passages formingcommunication between the branches adjacent the stove holes, dampersindividual to the branches for controlling the admission of heated airinto the branches, a heater discharging into the flue, there being aheat passage having communication With one of the branches for inducinga circulation of heated air across the stove holes, and means forcontrolling the last said passage, said branches having communicationwith the flue in different horizontal planes.

In testimony whereof I have signedmy name to this specification in thepresence of two subscribing witnesses, on this 31st day of October, A.D. 1910.

FOREST V. DETWILER. Witnesses J. H. JocI-IUM, Jr., M. P. CANTWELL.

